Question

What volume of O₂(g) at 810 mmHg pressure is required to react completely with a 4.50 g sample of C(s) at 753°C? (3SF)

a) 2.15 L
b) 3.25 L
c) 4.90 L
d) 6.75 L

Answer 1

To find the volume of O₂ required, use stoichiometry and the ideal gas law.

Step-by-step explanation:

To find the volume of O2(g) required, we need to use the stoichiometry of the reaction. From the given equation, we know that 5 volumes of O2 will react with 1 volume of C.

First, we need to convert the mass of C into moles using its molar mass. Then, we can use the stoichiometry to find the volume of O2.

Once we have the moles of O2, we can use the ideal gas law to find the volume using the given pressure and temperature.